Multiple transmission codes

[Ram0998]

I have a 2009 dodge ram 2500 5.7 hemi 4X4 with the 545RFE transmission. The problem first showed itself after replacing my hub bearing assembly, the code at that time was P0734. Then after using an autel scanner from a friend in then showed up for a shift solenoid c circuit. I replaced the solenoid pack, new fluid and filters and did a quick learn on the transmission. The problem persists. I now have gear 5 incorrect ratio and the shift solenoid C is back in addition to the gear 4 incorrect ratio. I have no idea as to what is going on. Pcm and the tcm (they're integrated into one module) are working fine. I have 1st-3rd gear just fine, but 4thj9p and 5th I hardly have. It doesn't necessarily slip, almost feels like it gets stuck in neutral for a second when it tries to shift into 4th and 5th and of course downshift as well. After driving for maybe 10 minutes or so it will shift rough from 1st to second, as well as park, reverse, neutral etc. It will also sometimes get stuck on 2nd gear or 3rd gear until I shut it down for 60 seconds then turn it on and I have 1st-3rd again.
Update-the MS solenoid circuit popped up as well

 

[RamDiver]

I have a 2009 dodge ram 2500 5.7 hemi 4X4 with the 545RFE transmission. The problem first showed itself after replacing my hub bearing assembly, the code at that time was P0734. Then after using an autel scanner from a friend in then showed up for a shift solenoid c circuit. I replaced the solenoid pack, new fluid and filters and did a quick learn on the transmission. The problem persists. I now have gear 5 incorrect ratio and the shift solenoid C is back in addition to the gear 4 incorrect ratio. I have no idea as to what is going on. Pcm and the tcm (they're integrated into one module) are working fine. I have 1st-3rd gear just fine, but 4thj9p and 5th I hardly have. It doesn't necessarily slip, almost feels like it gets stuck in neutral for a second when it tries to shift into 4th and 5th and of course downshift as well. After driving for maybe 10 minutes or so it will shift rough from 1st to second, as well as park, reverse, neutral etc. It will also sometimes get stuck on 2nd gear or 3rd gear until I shut it down for 60 seconds then turn it on and I have 1st-3rd again.
Update-the MS solenoid circuit popped up as well

What is the mileage on the truck and the service history of the transmission?

Did you use Mopar Unicorn transmission fluid and an OEM pan/filter?


And, to Ram Forum.

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[Burla]

Hub Bearing Assembly as in at the wheel, and then this issue came up right after? So recently we had some one had a similar issue and it was attached to the wheel sensor. A say similar but it was a transmission issue tied to the wheel sensor, not sure if it is related, I will try and find it later if someone doesn't post it.

It's a 2009, it's just atf 4 all around, no unicorn fluid.

However, I have no idea about fuel cap, how old is battery? Did you try hard reset?

.

 

[Burla]

Not similar but point being something at wheel effected trans.

 

[Burla]

As for the other stuff, it might be the quick learn was not enough, you might need a dealer flash, so you may have two issues now. So you cant get into 5th gear at all? If so your in limp mode. It seams to be a mystery even now as far as getting the rfe out of limp mode, maybe someone with alpha can tell you if it can for sure get you out of limp.

 

[Ram0998]

What is the mileage on the truck and the service history of the transmission?

Did you use Mopar Unicorn transmission fluid and an OEM pan/filter?


And, View attachment 560745 to Ram Forum.

.

168,000 miles, oil service (includes gear oil and trans oil) every 6,000 miles or so. I did not use oem pan or filters. I've used atf+4 for years and not only on my ram with no issues

 

[Ram0998]

As for the other stuff, it might be the quick learn was not enough, you might need a dealer flash, so you may have two issues now. So you cant get into 5th gear at all? If so your in limp mode. It seams to be a mystery even now as far as getting the rfe out of limp mode, maybe someone with alpha can tell you if it can for sure get you out of limp.

I have not tried that as of yet. I can get into 5th gear for just a brief second before rpm ramps up for 2 seconds and kicks it back down. It happens constantly and eventually gets stuck in 3rd

 

[Ram0998]

Hub Bearing Assembly as in at the wheel, and then this issue came up right after? So recently we had some one had a similar issue and it was attached to the wheel sensor. A say similar but it was a transmission issue tied to the wheel sensor, not sure if it is related, I will try and find it later if someone doesn't post it.

It's a 2009, it's just atf 4 all around, no unicorn fluid.

However, I have no idea about fuel cap, how old is battery? Did you try hard reset?

.

The wheel speed sensor code no longer pops up after I did yet another hub assembly replacement. I've seen weird issues with vehicles but nothing like this. And the battery is OLD and I have tried multiple hard resets.

 

[Ram0998]

Not similar but point being something at wheel effected trans.

I have looked into all that and eliminated quite a bit of it. My next step was to open up the valve body and check the check balls and accumulater pistons and flex plate.

 

[huntergreen]

Isn’t there an internal sensor pack attached to the valleys ? Wife’s grand Cherokee had same symptoms and replacing valley and sensor pack fixed it . Same trans in grand Cherokee but a few years older than your current trans.

 

[Ram0998]

Isn’t there an internal sensor pack attached to the valleys ? Wife’s grand Cherokee had same symptoms and replacing valley and sensor pack fixed it . Same trans in grand Cherokee but a few years older than your current trans.

All I'm aware about is the shift solenoid pack that's attached to the valve body

 

[Sherman Bird]

I have a 2009 dodge ram 2500 5.7 hemi 4X4 with the 545RFE transmission. The problem first showed itself after replacing my hub bearing assembly, the code at that time was P0734. Then after using an autel scanner from a friend in then showed up for a shift solenoid c circuit. I replaced the solenoid pack, new fluid and filters and did a quick learn on the transmission. The problem persists. I now have gear 5 incorrect ratio and the shift solenoid C is back in addition to the gear 4 incorrect ratio. I have no idea as to what is going on. Pcm and the tcm (they're integrated into one module) are working fine. I have 1st-3rd gear just fine, but 4thj9p and 5th I hardly have. It doesn't necessarily slip, almost feels like it gets stuck in neutral for a second when it tries to shift into 4th and 5th and of course downshift as well. After driving for maybe 10 minutes or so it will shift rough from 1st to second, as well as park, reverse, neutral etc. It will also sometimes get stuck on 2nd gear or 3rd gear until I shut it down for 60 seconds then turn it on and I have 1st-3rd again.
Update-the MS solenoid circuit popped up as well

P0734 is NOT set by a wheel hub. I assume the 16 year old trans hasn't been gone into? Do you still have the old pump filter? Did you replace the spin on cooler oil filter while the pan was off? If not, and it came loose, that's a problem.
IF you still have the original pump filter, open it up and unfold the filter media. I'm guessing you might find a screw or 3 from the valve body; that's a common thing, and you're likely to find clutch debris on a unit that old.

The 545 and the 45 RFE's are identical, with the exception of computer programming. My money is on the transmission needing overhauled, and a Transgo kit installed. That kit addresses several flaws in original design/ operation. The 45 RFE I did in December shifts like butter according to the customer. That trans is VERY thirsty for fluid, too.

 

[Ram0998]

P0734 is NOT set by a wheel hub. I assume the 16 year old trans hasn't been gone into? Do you still have the old pump filter? Did you replace the spin on cooler oil filter while the pan was off? If not, and it came loose, that's a problem.
IF you still have the original pump filter, open it up and unfold the filter media. I'm guessing you might find a screw or 3 from the valve body; that's a common thing, and you're likely to find clutch debris on a unit that old.

The 545 and the 45 RFE's are identical, with the exception of computer programming. My money is on the transmission needing overhauled, and a Transgo kit installed. That kit addresses several flaws in original design/ operation. The 45 RFE I did in December shifts like butter according to the customer. That trans is VERY thirsty for fluid, too.

I've replaced both filters, I've taken off the valve body to replace the solenoid pack but my stupid self did not look at the valve body much while it was down. It seemed to shift great after service but a few minutes into the test drive it went back to the same issue at hand.

 

[Ram0998]

UPDATE
So I pulled the trans, turns out almost all the clutch packs are burned up

 

[Sherman Bird]

I have a 2009 dodge ram 2500 5.7 hemi 4X4 with the 545RFE transmission. The problem first showed itself after replacing my hub bearing assembly, the code at that time was P0734. Then after using an autel scanner from a friend in then showed up for a shift solenoid c circuit. I replaced the solenoid pack, new fluid and filters and did a quick learn on the transmission. The problem persists. I now have gear 5 incorrect ratio and the shift solenoid C is back in addition to the gear 4 incorrect ratio. I have no idea as to what is going on. Pcm and the tcm (they're integrated into one module) are working fine. I have 1st-3rd gear just fine, but 4thj9p and 5th I hardly have. It doesn't necessarily slip, almost feels like it gets stuck in neutral for a second when it tries to shift into 4th and 5th and of course downshift as well. After driving for maybe 10 minutes or so it will shift rough from 1st to second, as well as park, reverse, neutral etc. It will also sometimes get stuck on 2nd gear or 3rd gear until I shut it down for 60 seconds then turn it on and I have 1st-3rd again.
Update-the MS solenoid circuit popped up as well

That "spin-up" between gears flags a trouble code due to "CVI (Clutch Volume Index) value exceeding those parameters the PCM should see. You can deny all you want, BUT an overhaul is very likely needed.

That model of transmission was introduced in 1999 and discontinued after the 2018 MY. Some parts are a bit difficult to come by, but if all the trans needs is a typical overhaul, you should be in good shape.

The Transgo shift kit is a must for long term dependability.